KZ's ZSTX wired earphones without a microphone. This is a new, current model, opened in March 2025 and used for about 5 hours. These are great wired earphones that will energize you. I think they're a good entry-level product for Chinese earphones. They were a hot topic on social media, and I bought them because I wanted to try them out. However, I preferred the earphones I usually use, so I'm selling these. The ear tips are unused, with one set each of S, M, and L sizes. The cable is silver-plated oxygen-free copper, and the connection pins are secure. Since they are an opened item, please refrain from purchasing if you are concerned about minor details. I will take measures to protect them from rain and ship them via Yu-Packet Post Mini. Thank you very much. #WiredEarphones #ChineseEarphones #KZ